| Name | From | To | Age range |
|---|---|---|---|
| Osmunda sp.1 Maly.,1956 | Miocene | Miocene |
|
| Osmunda sp.1 Sedo.,1956 | Late Miocene | Late Miocene |
|
| Osmunda sp.2 | Permian | Miocene |
|
| Osmunda sp.2 Kruc.,1956 | Early Miocene | Early Miocene |
|
| Osmunda sp.2 Maly.,1956 | Miocene | Miocene |
|
| Osmunda sp.2 Sedo.,1956 | Late Miocene | Early Pliocene |
|
| Osmunda sp.3 | Aptian | Danian |
|
| Osmunda sp.3 Kruc.,1956 | Early Miocene | Early Miocene |
|
| Osmunda sp.4 | Nd | Nd |
|
| Osmunda sp.A | Jurassic | Jurassic |
|
| Osmunda sp.B | Jurassic | Dogger |
|
| Osmunda sp.C | Jurassic | Jurassic |
|
| Osmunda sparsituberculata | Jurassic | Late Eocene |
|
| Osmunda speciosa | Early Jurassic | Cenomanian |
|
| Osmunda sphaerinaeformis | Early Triassic | Aptian |
|
| Osmunda sphenopteroides | Cretaceous | Cretaceous |
|
| Osmunda spinosus | Early Jurassic | Early Jurassic |
|